00815nam a2200229Ia 4500 0000016857 20251012174548.0 s1990 xx eng c 9280600516 TD304.65.A1 379.122 BLA 1990 From handpumps to health : the evolution of water and sanitation programmes in Bangladesh, India and Nigeria United Nations Children's Fund, New York 1990 p. Maggie Black 133 p. : ill. (some col.) ; 26 cm. a-bg--- a-ii--- f-nr--- AIY/MR Sanitary engineering- Nigeria Sanitary engineering- Bangladesh Sanitary engineering- India Water-supply- Nigeria Water-supply- Bangladesh Water-supply- India 6253 6253 0 0 0 0 KEM KEM 2012-12-07 0 0000007870 2025-10-12 08:35:48 2025-10-12 OS